(19)

(11)

EP 1 131 617 A1

(12)

(43) Date of publication: 12.09.2001 Bulletin 2001/37 (21) Application number: 99970731.8 (22) Date of filing: 19.10.1999

(51) International Patent Classification (IPC)7: G01N 21/05, G01N 21/88 (86) International application number: PCT/SE9901/878 (87) International publication number: WO 0023/786 (27.04.2000 Gazette 2000/17)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.10.1998 SE 9803557 (71) Applicant: Fibertracker AB 184 84 Kersberga (SE)	(72) Inventors: KARLSSON, Hakan, Ingvar S-184 61 Akersberga (SE) FRANSSON, Per-Ivar S-184 32 Akersberga (SE) (74) Representative: Onn, Thorsten et al AB STOCKHOLMS PATENTBYRA,Zacco & Bruhn,Box 23101 104 35 Stockholm 104 35 Stockholm (SE)